Power module

Hello, The project consist of designing a power module with the following properties: -power input at 5V from USB or from an auxiliary input -1-cell battery charging -Power output: 5V, 3.3V and I2C connection to the battery charger IC -PWR button of type Press-ON-Press-OFF toggle action to cut the 3.3V and 5V output Blocks (see the attached picture): -1-cell battery charger and booster (to 5V) using the IP5306-I2C chip: see (4) on the picture -DC-DC converter (from battery or 5V) to 3.3V: see (3) on the picture -Two power input: 5V (from USB) and 5V Auxiliary: see (2) on the picture -Latching push button power switch: see (1) on the picture. Behavior: .The PWR button is of type Press-ON-Press-OFF toggle action to cut the 3.3V and 5V power output (at J4) .Usage: A short button press (on the “push button” on the board) latches the circuit ON and another toggles it back OFF. .The behavior of the PWR_BTN_N pin (of J4) is like the PWR button: of type Press-ON-Press-OFF toggle action, to cut the 3.3V and 5V power. The PWR_BTN_N pin can be connected to external microcontroler to get the same behavior Interface of the circuit: -Power input: 5V supply from USB (J1) of from another power auxiliary (J2) input -Rechargeable 1-cell battery (J3) -Output (J4) -Power: 5V, 3.3V, GND -Signal output: I2C and PWR_BTN_N pin to switch on/off the circuit -Latching push button power switch (PWR) to switch on/off the circuit Datasheets: -IP5306-I2C .[login to view URL] .[login to view URL] -SY8089A1 [login to view URL] Task to Do 1)Discuss about the picture: suggest ideas, comment, modify… 2)Schematics design with KICAD: (1) and (2). (3) and (4) is provided on the circuits datasheets 3)Component choice: appropriate values (current, voltage...), compact dimensions 4)Do PCB traces: target PCB dimensions: 20x20mm RESPONSE FROM CANDIDATES WITHOUT EXPLANATION ON HOW TO PROCEED THE TASKS 1 to 5 WILL BE IGNORED.